HarmonyOS中的网络编程与Socket通信怎么实现?

Question

HarmonyOS中的网络编程与Socket通信怎么实现?

Answer 1

目前HarmonyOS提供的网络库：https://gitee.com/openharmony-tpc/tpc_resource#%E7%BD%91%E7%B... 。
原生库模块当前提供有socket通信暂无其他使用的封装库，socket通信可参考文档：https://developer.huawei.com/consumer/cn/doc/harmonyos-guides... 。
对于无法解析消息的情况，可参考以下代码示例：

import socket from ‘@ohos.net.socket’;
import { BusinessError } from ‘@ohos.base’;
import util from ‘@ohos.util’;
import { TAG } from ‘…/…/entryability/EntryAbility’;

class SocketInfo {
  message: ArrayBuffer = new ArrayBuffer(1);
  remoteInfo: socket.SocketRemoteInfo = {} as socket.SocketRemoteInfo;
}

// 同步序列号
let hasSync = false
let syncNo = new Uint8Array(4)
let mask = 0xb0100000

let textEncoder = new util.TextEncoder(‘utf-8’);
let textDecoder = util.TextDecoder.create(‘utf-8’, {
  fatal: true,
  ignoreBOM: true
});

function encode(message: string, c: number): ArrayBuffer {
// 版本信息
let version = new Uint8Array(1)
// 标记位
let flag = new Uint8Array(1)
// 命令码
let cmd = new Uint8Array(2)
// 消息长度
let len = new Uint8Array(4)
// 消息
let content = textEncoder.encodeInto(message)

version[0] = 1
flag[0] = 0
cmd[1] = c >> 8
cmd[0]